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Ternary Imides for Hydrogen Storage

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  • The present work is financially supported by the Agency for Science, Technology and Research (A*STAR), Singapore. The authors acknowledge Associate Professor John Wang, Dr. Junmin Xue and Dr. Anthony Zhou for their kind help in sharing facilities.

Abstract

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Ternary imides of Li–Mg and Li–Ca were synthesized and tested for hydrogen storage. Li2MgN2H2, as an example, reversibly stores 5.5 wt.-% hydrogen at temperatures below 180 °C (see Figure) with relatively high desorption plateau pressures. The present work also reveals the significance of chemical reactions between amides and ionic hydrides in the design and synthesis of novel metal–N–H systems for hydrogen storage.

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